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BOSTON MARATHON 2025

Matias Castro

Bib: 4189•M

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 37%
Gender (Male)
#0 / 16105
Top 49%
Division (M18-39)
#0 / 5642
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:17
Rank: #4061
Start → 5K
20:17 | 6:32/mi
10K· 6.21 mi
40:44
Rank: #4186 (-125)
5K → 10K
20:27 | 6:35/mi
15K· 9.32 mi
1:01:39
Rank: #4508 (-322)
10K → 15K
20:55 | 6:44/mi
20K· 12.43 mi
1:23:28
Rank: #5136 (-628)
15K → 20K
21:49 | 7:01/mi
Half· 13.11 mi
1:28:16
Rank: #5310 (-174)
20K → Half
4:48 | 7:02/mi
25K· 15.53 mi
1:46:25
Rank: #6166 (-856)
Half → 25K
18:09 | 7:29/mi
30K· 18.64 mi
2:13:08
Rank: #7626 (-1460)
25K → 30K
26:43 | 8:36/mi
20M
2:25:03
Rank: #8150 (-524)
30K → 20M
11:55 | 8:46/mi
21M
2:34:11
Rank: #8476 (-326)
20M → 21M
9:08 | 9:08/mi
35K· 21.75 mi
2:40:47
Rank: #8843 (-367)
21M → 35K
6:36 | 8:49/mi
23M
2:52:39
Rank: #9556 (-713)
35K → 23M
11:52 | 9:29/mi
24M
3:01:57
Rank: #10077 (-521)
23M → 24M
9:18 | 9:18/mi
40K· 24.85 mi
3:09:59
Rank: #10431 (-354)
24M → 40K
8:02 | 9:24/mi
25.2M
3:13:23
Rank: #10516 (-85)
40K → 25.2M
3:24 | 9:52/mi
Finish· 26.22 mi
3:20:55
Rank: #10409 (+107)
25.2M → Finish
7:32 | 7:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:28:16
Pace6:44 /mi
2nd Half
Distance13.11 mi
Time1:52:39
Pace8:36 /mi
📊Positive Split: 27.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:1920:176:3220:17
6:32
-
10K
6.21 mi10:42:4640:446:3320:27
6:35
+0:03
15K
9.32 mi11:03:411:01:396:3720:55
6:44
+0:09
20K
12.43 mi11:25:301:23:286:4321:49
7:01
+0:17
Half
13.11 mi11:30:181:28:166:444:48
7:02
+0:01
25K
15.53 mi11:48:271:46:256:5118:09
7:29
+0:27
30K
18.64 mi12:15:102:13:087:0926:43
8:36
+1:07
20M
20.00 mi12:27:052:25:037:1511:55
8:46
+0:10
21M
21.00 mi12:36:132:34:117:219:08
9:08
+0:22
35K
21.75 mi12:42:492:40:477:246:36
8:49
-0:19
23M
23.00 mi12:54:412:52:397:3011:52
9:29
+0:40
24M
24.00 mi13:03:593:01:577:359:18
9:18
-0:11
40K
24.85 mi13:12:013:09:597:398:02
9:24
+0:06
25.2M
25.20 mi13:15:253:13:237:403:24
9:52
+0:28
Finish
26.22 mi13:22:573:20:557:407:32
7:24
-2:28

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:32 /mi

Average Pace

7:40 /mi

Slowest Pace

9:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:53:57

57% of race

Time at Steady Pace

54:22

27% of race

Time at Slower Pace

32:36

16% of race

Average Pace: 7:40 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:22:1920:176:3220:17
6:32
#4061
10K
6.21 mi10:42:4640:446:3320:27
6:35
#4186
15K
9.32 mi11:03:411:01:396:3720:55
6:44
#4508
20K
12.43 mi11:25:301:23:286:4321:49
7:01
#5136
Half
13.11 mi11:30:181:28:166:444:48
7:02
#5310
25K
15.53 mi11:48:271:46:256:5118:09
7:29
#6166
30K
18.64 mi12:15:102:13:087:0926:43
8:36
#7626
20M
20.00 mi12:27:052:25:037:1511:55
8:46
#8150
21M
21.00 mi12:36:132:34:117:219:08
9:08
#8476
35K
21.75 mi12:42:492:40:477:246:36
8:49
#8843
23M
23.00 mi12:54:412:52:397:3011:52
9:29
#9556
24M
24.00 mi13:03:593:01:577:359:18
9:18
#10077
40K
24.85 mi13:12:013:09:597:398:02
9:24
#10431
25.2M
25.20 mi13:15:253:13:237:403:24
9:52
#10516
Finish
26.22 mi13:22:573:20:557:407:32
7:24
#10409
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi4061383138315398(Top 19%)4976(Top 31%)4976(Top 88%)
10K6.21 mi3.10 mi4186-1253939-1083939-1084332(Top 15%)4070(Top 25%)4070(Top 72%)
15K9.32 mi3.11 mi4508-3224235-2964235-2965398(Top 19%)4976(Top 31%)4976(Top 88%)
20K12.43 mi3.11 mi5136-6284765-5304765-5307014(Top 25%)6216(Top 39%)6216(Top 110%)
Half13.11 mi0.68 mi5310-1744915-1504915-1507843(Top 28%)6805(Top 42%)6805(Top 121%)
25K15.53 mi2.42 mi6166-8565588-6735588-6739840(Top 35%)7779(Top 48%)7779(Top 138%)
30K18.64 mi3.11 mi7626-14606646-10586646-105815372(Top 54%)10215(Top 63%)10215(Top 181%)
20M20.00 mi1.36 mi8150-5246932-2866932-28615449(Top 54%)10112(Top 63%)10112(Top 179%)
21M21.00 mi1.00 mi8476-3267097-1657097-16514237(Top 50%)9440(Top 59%)9440(Top 167%)
35K21.75 mi0.75 mi8843-3677290-1937290-19317322(Top 61%)10726(Top 67%)10726(Top 190%)
23M23.00 mi1.25 mi9556-7137647-3577647-35718560(Top 65%)11240(Top 70%)11240(Top 199%)
24M24.00 mi1.00 mi10077-5217871-2247871-22418787(Top 66%)11301(Top 70%)11301(Top 200%)
40K24.85 mi0.85 mi10431-3548022-1518022-15118227(Top 64%)10933(Top 68%)10933(Top 194%)
25.2M25.20 mi0.35 mi10516-858051-298051-2916285(Top 57%)9995(Top 62%)9995(Top 177%)
Finish26.22 mi1.02 mi10409+1077963+887963+888416(Top 30%)6155(Top 38%)6155(Top 109%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

5398

Males

4976

M18-39

4976

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4332

Males

4070

M18-39

4070

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

5398

Males

4976

M18-39

4976

15K→20K

9.3 - 12.4 mi

Top 25%
×5stories
+106ft-86ft

Overall

7014

Males

6216

M18-39

6216

20K→Half

12.4 - 13.1 mi

Top 28%
×2stories
+19ft-37ft

Overall

7843

Males

6805

M18-39

6805

Half→25K

13.1 - 15.5 mi

Top 35%
×4stories
+66ft-88ft

Overall

9840

Males

7779

M18-39

7779

25K→30K

15.5 - 18.6 mi

Top 54%
×9stories
+181ft-148ft

Overall

15372

Males

10215

M18-39

10215

30K→20M

18.6 - 20.0 mi

Top 54%
×5stories
+64ft-50ft

Overall

15449

Males

10112

M18-39

10112

20M→21M

20.0 - 21.0 mi

Top 50%
×8stories
+106ft-24ft

Overall

14237

Males

9440

M18-39

9440

21M→35K

21.0 - 21.8 mi

Top 61%
×7stories
+17ft-86ft

Overall

17322

Males

10726

M18-39

10726

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

18560

Males

11240

M18-39

11240

23M→24M

23.0 - 24.0 mi

Top 66%
×6stories
+12ft-82ft

Overall

18787

Males

11301

M18-39

11301

24M→40K

24.0 - 24.9 mi

Top 64%
×1story
+6ft-20ft

Overall

18227

Males

10933

M18-39

10933

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16285

Males

9995

M18-39

9995

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2stories
+22ft-21ft

Overall

8416

Males

6155

M18-39

6155

Passing Analysis

Category:
Athletes Passed
471
Passed By
6817
Net Change
-6348
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4061
5K → 10K100225-125#4061#4186
10K → 15K29351-322#4186#4508
15K → 20K28656-628#4508#5136
20K → Half4178-174#5136#5310
Half → 25K20876-856#5310#6166
25K → 30K151475-1460#6166#7626
30K → 20M24548-524#7626#8150
20M → 21M28354-326#8150#8476
21M → 35K9376-367#8476#8843
35K → 23M21734-713#8843#9556
23M → 24M14533-521#9556#10077
24M → 40K26380-354#10077#10431
40K → 25.2M15100-85#10431#10516
25.2M → Finish13831+107#10516#10409
TOTALS4716817-6348
📊

Passing Visuals

Category:
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🔥Passing Intensity

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing